tofsee | 66499cda0ecf663375bd67e42255e678d77405e401601072b862bd0b4caa4c10

General

Target

2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe
Size

10.1MB
MD5

65503d0561900400f2cdc6d430504c7d
SHA1

8b92936c104917403d0981a5e3b296325376f9c6
SHA256

66499cda0ecf663375bd67e42255e678d77405e401601072b862bd0b4caa4c10
SHA512

80844bdcb918296aa4b0d1b30e37c3ad905d6111a635ec909fb0917cf71c693e922e6cc9c4796c7dfb645b0722170763abec49fb1c938acbddf553c9b21acb3d
SSDEEP

49152:SLFuiE888888888888888888888888888888888888888888888888888888888u:SLMZ

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2924	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\edyufaib\ImagePath = "C:\\Windows\\SysWOW64\\edyufaib\\owlpcajj.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe

Deletes itself 1 IoCs

pid	Process
4240	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3280	owlpcajj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3280 set thread context of 4240	3280	owlpcajj.exe	93

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
1104	sc.exe
4816	sc.exe
1388	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	owlpcajj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4968 wrote to memory of 3900	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	82
PID 4968 wrote to memory of 3900	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	82
PID 4968 wrote to memory of 3900	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	82
PID 4968 wrote to memory of 1880	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	84
PID 4968 wrote to memory of 1880	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	84
PID 4968 wrote to memory of 1880	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	84
PID 4968 wrote to memory of 1104	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	86
PID 4968 wrote to memory of 1104	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	86
PID 4968 wrote to memory of 1104	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	86
PID 4968 wrote to memory of 4816	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	88
PID 4968 wrote to memory of 4816	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	88
PID 4968 wrote to memory of 4816	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	88
PID 4968 wrote to memory of 1388	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	90
PID 4968 wrote to memory of 1388	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	90
PID 4968 wrote to memory of 1388	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	90
PID 3280 wrote to memory of 4240	3280	owlpcajj.exe	93
PID 3280 wrote to memory of 4240	3280	owlpcajj.exe	93
PID 3280 wrote to memory of 4240	3280	owlpcajj.exe	93
PID 3280 wrote to memory of 4240	3280	owlpcajj.exe	93
PID 3280 wrote to memory of 4240	3280	owlpcajj.exe	93
PID 4968 wrote to memory of 2924	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	94
PID 4968 wrote to memory of 2924	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	94
PID 4968 wrote to memory of 2924	4968	2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe	94

C:\Users\Admin\AppData\Local\Temp\2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\edyufaib\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3900
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\owlpcajj.exe" C:\Windows\SysWOW64\edyufaib\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create edyufaib binPath= "C:\Windows\SysWOW64\edyufaib\owlpcajj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1104
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description edyufaib "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start edyufaib
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1388
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2924

C:\Windows\SysWOW64\edyufaib\owlpcajj.exe
C:\Windows\SysWOW64\edyufaib\owlpcajj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_65503d0561900400f2cdc6d430504c7d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3280
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\owlpcajj.exe

Filesize
10.3MB

MD5
3fdfced3e2533f5388106310ef857ba2

SHA1
84f269f11c94a114cc1941b58d5ad590c2c0eae9

SHA256
8d03a4d58a10324aeb4854f7227a4b4306a457e0dae0457a7182ece79fe84b1d

SHA512
4cb2579a80748ddbbae1650a48b7d6e68a8733c440a94bbe8bcdebbc58570ae40a506fbc7b32da3ad997f07da5a01ef8c2de9b1ffecaa6cf0950a06167d7a12d

Download Submit
memory/3280-9-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download
memory/4240-8-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download
memory/4240-14-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download
memory/4240-15-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download
memory/4968-1-0x0000000003020000-0x0000000003120000-memory.dmp

Filesize
1024KB

Download
memory/4968-2-0x0000000002E00000-0x0000000002E13000-memory.dmp

Filesize
76KB

Download
memory/4968-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4968-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4968-12-0x0000000002E00000-0x0000000002E13000-memory.dmp

Filesize
76KB

Download
memory/4968-11-0x0000000000400000-0x0000000002DBF000-memory.dmp

Filesize
41.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads